Product maintenance
Inspection and cleaning
This section describes how to inspect for dirt and damage and how to clean
the exterior and interior of the instrument. Inspection and cleaning should be
performed as preventive maintenance, which when done regularly, may prevent
the instrument from malfunctioning and e nhance its reliability.
Preventive maintenance consists of visually inspecting and cleaning the
instrument and using general care when operating it.
How often preventive maintenance should be performed depends on the severity
of the environment in which the instrument is used. A proper time to perform
preventi
ve maintenance is just before making any product adjustments.
General care
The top cover helps keep dust out of the instrument, and is needed to meet EMI
and cooling requirements. The top cover should be in place when the instrument
is in ope
ration.
Inspection and cleaning
procedures
Inspect and clean the instrument as often as operating conditions require.
The collection of dirt on components inside can cause them to overheat and
break
down. (Dirt acts like an insulating blanket, preventing efficient heat
dissipation.) Dirt also provides an electrical conduction path that could cause a
hardware failure, especially under high-humidity conditions.
CAUTION. Avoid the use of chemical cleaning agents that might damage the
plastics used in this instrument. Use only deionized water when cleaning the
menu buttons or front-panel buttons. Use an ethyl alcohol solution as a cleaner
and
rinse with deionized water.
1–6 TG8000 Multiformat Test Signal Generator Service Manual
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